From: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
To: svt-core@virtuozzo.com
Cc: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Subject: [PATCH QEMU HCI-8.1 v6 00/34] vfio: support qemu-update with passed through GPU's and vGPU's #VSTOR-103860
Date: Mon, 02 Nov 2026 12:36:15 +0200 [thread overview]
Message-ID: <20261102-vfio_v1-v6-0-9bc7cabc850d@virtuozzo.com> (raw)
v5 -> v6:
mdev vGPUs are no longer supported, only SR-IOV vGPUs and whole GPUs
(#VSTOR-150598 and #VSTOR-150595 closed).
- Patch 34 ("VZ: vfio/container: lift the CPR blocker for mdev devices")
dropped: it only let cpr-exec through for mdev devices
- Patch 35 ("VZ: migration: keep the estimate and wait over starved
windows") dropped: it only mattered for a device without pre-copy;
with pre-copy the sender isn't starved before the switchover
- Patch 36 -> 34 ("VZ: vfio/migration: don't wait for stop-copy-only
device state"): reduced to hw/vfio/migration.c: the stop-copy size is
reported as pending only while the device still has something to
pre-copy, so once it has drained the rest decides the switchover on
its own; the savevm and migration.c changes are gone. Tagged
#VSTOR-141821 instead of the closed #VSTOR-150595
Fixes of the issues found by Sashiko AI review.
- Patch 27 ("vfio/listener: skip dirty page tracking during CPR")
replaced by "migration/ram: don't start dirty logging in CPR modes":
no RAM is migrated in a CPR mode, so the dirty log isn't started at
all, instead of VFIO alone skipping it; that also closed the gap
where VFIO tracking stayed off with the log left on by another user
- Patch 34 ("VZ: vfio/migration: don't wait for stop-copy-only device
state"): a failed pre-copy size query no longer passes for a drained
device
v5: http://lore.virtuozzo.com/20261023-vfio_v1-v5-0-ba0bf3c6d122@virtuozzo.com
---
Akihiko Odaki (1):
vfio/pci: Grow buffer in vfio_pci_host_match()
Andrey Drobyshev (20):
VZ: migration/cpr-exec: fix Error leak in preserve_ram()
migration/cpr-exec: restore RAM write access if exec fails
vfio/region: create BAR dma-bufs with O_CLOEXEC
migration/cpr-exec: require a file or exec migration URI
migration: close the CPR state if the outgoing channel fails to open
migration/cpr-exec: close the persisted state if the channel fails to open
migration: don't refuse a blocker over a migration of another mode
kvm: tolerate ioctls after kvm_close()
kvm: fix coalesced MMIO flush racing with kvm_close()
migration/cpr: add cpr_is_in_progress()
vfio/migration: don't migrate device state during CPR
vfio/migration: don't assume the device is running on CPR incoming
migration/ram: don't start dirty logging in CPR modes
VZ: vfio/cpr: don't close KVM on cpr-exec
VZ: migration/cpr-exec: abort cpr-exec if memory can't be preserved
VZ: migration/cpr-exec: take the vhost-net devices back if exec fails
VZ: migration/cpr-exec: don't exec if a vhost-net device can't be released
VZ: vfio/region: preserve BAR mappings across cpr-exec #VSTOR-103860
VZ: migration/cpr-exec: allow cpr-exec with VFIO devices #VSTOR-103860
VZ: vfio/migration: don't wait for stop-copy-only device state #VSTOR-141821
Arun Menon (1):
migration: Fix regression of passing error_fatal into vmstate_load_state()
Cédric Le Goater (2):
vfio/pci: Reject invalid MSI-X Table and PBA BIR values
vfio/pci: Fix information leak in vfio_rom_read()
Fabiano Rosas (3):
migration: yank: Move register instance earlier
migration: Free cpr-transfer MigrationAddress along with gsource
migration: Move CPR HUP watch to cpr-transfer.c
Igor Mammedov (1):
q35: Fix migration of SMRAM state
Mario Casquero (1):
vfio/pci: Initialize rom_read_failed in vfio_pci_load_rom()
Markus Armbruster (1):
migration: Plug memory leaks after migrate_set_error()
Peter Xu (1):
migration: Fix crash on second migration when cancel early
Tycho Andersen (AMD) (1):
hw/vfio: Fix liveness check in vfio_connect_kvm_msi_virq()
Vladimir Sementsov-Ogievskiy (1):
migration: vmstate_save_state_v: fix double error_setg
Yanfei Xu (1):
migration: ensure APIC is loaded prior to VFIO PCI devices
accel/kvm/kvm-all.c | 24 +++++++-
docs/devel/migration/CPR.rst | 8 +--
hw/display/virtio-gpu.c | 22 +++++---
hw/intc/apic_common.c | 1 +
hw/net/vhost_net.c | 62 ++++++++++++++++++++-
hw/pci-host/q35.c | 25 ++++-----
hw/pci/pci.c | 15 ++++-
hw/s390x/virtio-ccw.c | 17 +++++-
hw/scsi/spapr_vscsi.c | 10 +++-
hw/vfio/cpr.c | 11 ++--
hw/vfio/device.c | 29 +++++++---
hw/vfio/migration-multifd.c | 2 +
hw/vfio/migration.c | 64 +++++++++++++++++++--
hw/vfio/pci.c | 25 ++++++---
hw/vfio/region.c | 51 ++++++++++++++++-
hw/virtio/virtio-mmio.c | 15 ++++-
hw/virtio/virtio-pci.c | 15 ++++-
hw/virtio/virtio.c | 10 +++-
include/hw/vfio/vfio-cpr.h | 1 +
include/hw/vfio/vfio-device.h | 2 -
include/hw/virtio/vhost.h | 2 +
include/migration/cpr.h | 7 +++
include/migration/vmstate.h | 1 +
include/net/vhost_net.h | 3 +-
migration/cpr-exec.c | 44 +++++++++++++--
migration/cpr-transfer.c | 33 +++++++++++
migration/cpr.c | 22 ++++++++
migration/migration.c | 126 ++++++++++++++++++++++++------------------
migration/migration.h | 5 ++
migration/multifd.c | 2 +
migration/ram.c | 7 ++-
migration/vmstate.c | 7 ++-
tests/qtest/q35-test.c | 6 --
33 files changed, 534 insertions(+), 140 deletions(-)
---
base-commit: 02f55118bcb0533ce4c6544458c30803d96bea4a
change-id: 20261009-vfio_v1-a176cddd6b64
Best regards,
--
Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
next reply other threads:[~2026-11-02 10:36 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 10:36 Andrey Drobyshev [this message]
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 01/34] VZ: migration/cpr-exec: fix Error leak in preserve_ram() Andrey Drobyshev
2026-11-02 10:39 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 02/34] migration/cpr-exec: restore RAM write access if exec fails Andrey Drobyshev
2026-11-02 10:40 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 03/34] vfio/region: create BAR dma-bufs with O_CLOEXEC Andrey Drobyshev
2026-11-02 10:40 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 04/34] migration/cpr-exec: require a file or exec migration URI Andrey Drobyshev
2026-11-02 10:42 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 05/34] migration: close the CPR state if the outgoing channel fails to open Andrey Drobyshev
2026-11-02 10:42 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 06/34] migration/cpr-exec: close the persisted state if the " Andrey Drobyshev
2026-11-02 10:44 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 07/34] migration: don't refuse a blocker over a migration of another mode Andrey Drobyshev
2026-11-02 10:44 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 08/34] migration: Plug memory leaks after migrate_set_error() Andrey Drobyshev
2026-11-02 10:44 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 09/34] hw/vfio: Fix liveness check in vfio_connect_kvm_msi_virq() Andrey Drobyshev
2026-11-02 10:45 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 10/34] vfio/pci: Reject invalid MSI-X Table and PBA BIR values Andrey Drobyshev
2026-11-02 10:45 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 11/34] vfio/pci: Fix information leak in vfio_rom_read() Andrey Drobyshev
2026-11-02 10:45 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 12/34] vfio/pci: Initialize rom_read_failed in vfio_pci_load_rom() Andrey Drobyshev
2026-11-02 10:46 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 13/34] vfio/pci: Grow buffer in vfio_pci_host_match() Andrey Drobyshev
2026-11-02 10:46 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 14/34] q35: Fix migration of SMRAM state Andrey Drobyshev
2026-11-02 10:48 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 15/34] migration: ensure APIC is loaded prior to VFIO PCI devices Andrey Drobyshev
2026-11-02 10:47 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 16/34] migration: Fix regression of passing error_fatal into vmstate_load_state() Andrey Drobyshev
2026-11-02 10:51 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 17/34] migration: vmstate_save_state_v: fix double error_setg Andrey Drobyshev
2026-11-02 10:51 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 18/34] migration: yank: Move register instance earlier Andrey Drobyshev
2026-11-02 10:55 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 19/34] migration: Free cpr-transfer MigrationAddress along with gsource Andrey Drobyshev
2026-11-02 10:53 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 20/34] migration: Move CPR HUP watch to cpr-transfer.c Andrey Drobyshev
2026-11-02 10:54 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 21/34] migration: Fix crash on second migration when cancel early Andrey Drobyshev
2026-11-02 10:57 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 22/34] kvm: tolerate ioctls after kvm_close() Andrey Drobyshev
2026-11-02 11:01 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 23/34] kvm: fix coalesced MMIO flush racing with kvm_close() Andrey Drobyshev
2026-11-02 11:00 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 24/34] migration/cpr: add cpr_is_in_progress() Andrey Drobyshev
2026-11-02 11:01 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 25/34] vfio/migration: don't migrate device state during CPR Andrey Drobyshev
2026-11-02 11:07 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 26/34] vfio/migration: don't assume the device is running on CPR incoming Andrey Drobyshev
2026-11-02 11:06 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 27/34] migration/ram: don't start dirty logging in CPR modes Andrey Drobyshev
2026-11-02 11:07 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 28/34] VZ: vfio/cpr: don't close KVM on cpr-exec Andrey Drobyshev
2026-11-02 11:09 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 29/34] VZ: migration/cpr-exec: abort cpr-exec if memory can't be preserved Andrey Drobyshev
2026-11-02 11:09 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 30/34] VZ: migration/cpr-exec: take the vhost-net devices back if exec fails Andrey Drobyshev
2026-11-02 11:11 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 31/34] VZ: migration/cpr-exec: don't exec if a vhost-net device can't be released Andrey Drobyshev
2026-11-02 11:10 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 32/34] VZ: vfio/region: preserve BAR mappings across cpr-exec #VSTOR-103860 Andrey Drobyshev
2026-11-02 11:16 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 33/34] VZ: migration/cpr-exec: allow cpr-exec with VFIO devices #VSTOR-103860 Andrey Drobyshev
2026-11-02 11:12 ` no-reply
2026-11-02 10:36 ` [PATCH QEMU HCI-8.1 v6 34/34] VZ: vfio/migration: don't wait for stop-copy-only device state #VSTOR-141821 Andrey Drobyshev
2026-11-02 11:15 ` no-reply
-- strict thread matches above, loose matches on Subject: below --
2026-10-30 14:45 [PATCH QEMU HCI-8.1 v6 00/34] vfio: support qemu-update with passed through GPU's and vGPU's #VSTOR-103860 Andrey Drobyshev
2026-11-02 10:33 ` Andrey Drobyshev
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